Principal Architect Scale AIPrincipal ArchitectWashington, DC$257,000–$321,000 / yearOur products provide the high-quality data and full-stack technologies that power the world's leading models, and help enterprises and governments build, deploy, and oversee AI applications that deliver real impact. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position, determined by work location and additional factors, including job-related skills, experience, interview performance, and relevant education or training.
Principal FPGA Designer – TeraWave Blue OriginPrincipal FPGA Designer – TeraWaveWashingtonand/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing, vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. Required for Certain Job Profiles: Drivers who operate Commercial Motor Vehicles with a Gross Vehicle Weight (GVW), Gross Vehicle Weight Rating (GVWR) or combination of power unit and trailer that meets or exceeds 10,001 lbs.
Principle Systems Engineer Leidos Holdings IncPrinciple Systems EngineerLaurel, MD$154,050–$278,475 / yearThe Leidos Intel Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support Intelligence Community customers as they address evolving national security challenges. Bachelor's degree in Systems Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or a related discipline from an accredited college or university.
Principle Systems Engineer LeidosPrinciple Systems EngineerLaurel, MarylandThe Leidos Intel Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support Intelligence Community customers as they address evolving national security challenges. Bachelor's degree in Systems Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or a related discipline from an accredited college or university.
Principal Reverse Engineering/Vulnerability Research Engineer ClarityPrincipal Reverse Engineering/Vulnerability Research EngineerHerndon, VAClarity Innovations is a trusted national security partner, dedicated to safeguarding our nation's interests and delivering innovative solutions that empower the Intelligence Community (IC) and Department of Defense (DoD) to transform data into actionable intelligence, ensuring mission success in an evolving world. We are committed to delivering cutting-edge tools and capabilities that address the most complex national security challenges, empowering our partners to stay ahead of emerging threats and ensuring the success of their critical missions.
Rolling Stock Electrical Services Senior/Principal Consultant AtkinsRealisRolling Stock Electrical Services Senior/Principal ConsultantWashington, DC$130,000–$216,000 / yearWe are seeking a Rolling Stock Electrical Services Senior/Principal Consultant to join our team in Los Angeles, CA to provide high quality rolling stock consultancy services to clients primarily in the field of electrical systems, such as vehicle control circuits, propulsion and traction control, auxiliary power/battery, EMI/EMC, software, lighting, high voltage collection and distribution, communication systems, monitoring & diagnostics, and/or other rail vehicle electrical systems across of a variety of vehicle types, including commuter rail, streetcars, light rail, locomotives, and metro vehicles. AtkinsRéalis believes that conviction records may have a direct, adverse, and negative relationship to the following job duties: accessing company property, information, assets, and products; accessing confidential information and partnering and regularly working with or supervising other AtkinsRéalis employees and interacting with AtkinsRéalis clients including government property or ports.
Senior Software Engineer Maxar Technologies Inc (Inactive)Senior Software EngineerHerndon, VA$128,000–$170,000 / yearYou will support data scientists and mission partners by creating and/or refining software applications, maintaining and enhancing existing custom applications, troubleshooting defects, improving performance, contributing to code reviews and technical documentation, and helping deliver reliable capabilities in an agile, remote-first environment. In this role, you will work closely with software engineers, data scientists, analysts, and customer stakeholders to build, enhance, and sustain applications and data pipelines that help transform complex data into actionable insight.
Senior Software Engineer (Hybrid) - 27718 Huntington Ingalls Industries IncSenior Software Engineer (Hybrid) - 27718Columbia, MD$137,510–$195,000 / yearWhen extending an offer, Enlighten takes a variety of factors into consideration which include, but are not limited to, the roles function, internal equity and a candidates education or training, work experience, certifications and key skills. Enlighten, honored as a Top Workplace from USA Today, is a leader in big data solution development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science.
Senior Software Engineer - Secret stanleyreidSenior Software Engineer - SecretColumbia, MarylandQualified Senior SME should have the below skills: • Demonstrated SME-level mastery across the full stack: React (modern JavaScript/TypeScript), Python backend development with FastAPI and/or Django, AWS, and containerized deployment with Docker and Kubernetes. In this role you will serve as the authoritative technical SME across frontend, backend, and cloud/DevOps domains, providing expert guidance on architecture, design patterns, and technology selection.
NewFederal Principal Lifecycle Engineer VerizonFederal Principal Lifecycle EngineerAshburn, Virginia$118,000–$205,000 / yearDesigns and implements computer and information networks, such as local area networks (LAN), wide area networks (WAN), intranets, extranets, and other data communications networks including Software Defined Networks (SDN) and Network Function Virtualization (NFV). Providing mentoring to other team members on networking, application design, engineering and automation while acting as the final escalation point to support production service issues in concert with application, operational, and triage teams.
Senior AI Systems Engineer Science Applications International CorpSenior AI Systems EngineerChantilly, VAIn this role, you will directly support the National Reconnaissance Office's (NRO) Ground Enterprise Directorate (GED)-the organization responsible for architecting, acquiring, and sustaining the nation's most advanced space and ground systems across their full lifecycle. Work closely with customer and vendor data engineers and architects to ensure data pipelines, infrastructure, and compute environments are optimized for model development and deployment.
AI Machine Learning Developer Principal Science Applications International CorpAI Machine Learning Developer PrincipalArlington, VA$160,001–$200,000 / yearIn this matrixed role, you will lead the creation, prototyping, and operationalization of cutting-edge Artificial Intelligence and Machine Learning (AI/ML) Proof of Concepts (PoCs) specifically tailored for Intelligence Community (IC) mission use cases. Bachelor's degree in Computer Science, Data Science, Engineering, or a related technical discipline with 9+ years of relevant experience; OR Master's degree with 7 years of relevant experience.
Principal Architect Unissant IncPrincipal ArchitectWashington, DCPreferred certifications include TOGAF, AWS Certified Solutions Architect, Microsoft Certified: Azure Solutions Architect Expert, Google Cloud Professional Cloud Architect, SAFe Architect, or comparable cloud, DevSecOps, security, data architecture, and enterprise architecture credentials. This role will work closely with client technical stakeholders, program leadership, and delivery teams to ensure the program's cloud, security, data, analytics, AI-enabled services, and integration capabilities are secure, scalable, interoperable, and aligned to mission needs.
Principal Architect UnissantPrincipal ArchitectWashington, DCFull timePreferred certifications include TOGAF, AWS Certified Solutions Architect, Microsoft Certified: Azure Solutions Architect Expert, Google Cloud Professional Cloud Architect, SAFe Architect, or comparable cloud, DevSecOps, security, data architecture, and enterprise architecture credentials. This role will work closely with client technical stakeholders, program leadership, and delivery teams to ensure the program's cloud, security, data, analytics, AI-enabled services, and integration capabilities are secure, scalable, interoperable, and aligned to mission needs.
Principal Platform Architect Applied Information SciencesPrincipal Platform ArchitectReston, VirginiaYou are equally comfortable leading executive architecture workshops, writing Infrastructure-as-Code, implementing GitHub Actions, automating cloud deployments, building governance models, and solving complex platform engineering and DevSecOps challenges. You will work directly with client engineering, operations, and product teams to implement secure, scalable, and automated platforms, mentor technical teams, and lead complex transformation engagements from strategy through delivery.
NewPrincipal AI Architect and Enterprise AI Transformation Lead UnissantPrincipal AI Architect and Enterprise AI Transformation LeadAshburn, VAThis individual will build and demonstrate AI solutions using Generative AI, Large Language Models, Agentic AI, Retrieval-Augmented Generation, machine learning, and cloud-native technologies, and must be equally comfortable writing code, designing enterprise architectures, leading customer demonstrations and workshops, guiding technical teams, and advising executives on AI strategy, adoption, and measurable mission value. Demonstrated hands-on experience at a commercial AI company or comparable commercial technology organization developing, implementing, or scaling AI products and solutions; experience applying commercial AI practices within federal, national security, regulated, or mission-critical environments is strongly preferred.
Senior Software Engineer Iridium Satellite, LLCSenior Software EngineerLeesburg, Virginia$125,000–$160,000 / yearCompany Overview: Iridium is an award-winning satellite communications company operating the world's only truly global voice and data network, delivering reliable connectivity anywhere on Earth. As well, the role focuses on evaluating system performance, recommending improvements, and collaborating across teams to ensure reliaiblity and enhance the overall experience for our end-users.
Sr. Principal Data Scientist Clarity Innovations LLCSr. Principal Data ScientistSpringfield, VA$139,000–$314,000 / yearClarity Innovations is a trusted national security partner, dedicated to safeguarding our nation's interests and delivering innovative solutions that empower the Intelligence Community (IC) and Department of Defense (DoD) to transform data into actionable intelligence, ensuring mission success in an evolving world. We are committed to delivering cutting-edge tools and capabilities that address the most complex national security challenges, empowering our partners to stay ahead of emerging threats and ensuring the success of their critical missions.
Senior Unified Communications Engineer AHU TechnologiesSenior Unified Communications EngineerWashington, District of Columbia$73–$81 / hourComplete Description: This position serves as Senior Unified Communications Engineer responsible for assisting the DC-Net Voice Engineering Program Manager in carrying out the District Government’s responsibility in supporting the District of Columbia’s city-wide Voice and Video communication. · Installs and upgrades the following Cisco voice systems: Cisco Unified Communications Manager (CUCM), Cisco Unity Connection (CUC), Session Manager Edition (SME), Expressways, Emergency Response systems, SRST, and voice gateways.
Sr. Software Engineer - TS/SCI Poly required EmtakSr. Software Engineer - TS/SCI Poly requiredColumbia, MarylandThis role is perfect for someone who thrives in distributed systems, enjoys working across backend and frontend technologies, and values collaboration across multiple engineering teams. You’ll help evolve a modern platform built on containerized microservices, cloud‑native components, and a clean, web‑based UI/UX.